# MiMo-V2.5-Pro-UltraSpeed

> MiMo-V2.5-Pro-UltraSpeed is an open-weight language model from Xiaomi (MiMo), released on 8 Jun 2026. It accepts text and generates text, with a 1M-token context window and up to 131K output tokens per response. As of 4 Oct 2026, the lowest listed API price is $1.30 per million input tokens and $2.61 per million output tokens (Xiaomi MiMo API), across 1 provider we track.

Source page: https://www.aimodel.directory/models/mimo-v2-5-pro-ultraspeed
Last verified: 4 Oct 2026

## Specifications

- **Developer:** Xiaomi (MiMo)
- **Release date:** 8 Jun 2026 (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/xiaomi/models/mimo-v2.5-pro-ultraspeed.toml)
- **Status:** Preview (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/xiaomi/models/mimo-v2.5-pro-ultraspeed.toml)
- **Weights:** Open weights (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/xiaomi/models/mimo-v2.5-pro-ultraspeed.toml)
- **Context window:** 1M (1,048,576 tokens) (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/xiaomi/models/mimo-v2.5-pro-ultraspeed.toml)
- **Max output:** 131K tokens (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/xiaomi/models/mimo-v2.5-pro-ultraspeed.toml)
- **Knowledge cutoff:** Dec 2024 (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/xiaomi/models/mimo-v2.5-pro-ultraspeed.toml)
- **Input:** Text (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/xiaomi/models/mimo-v2.5-pro-ultraspeed.toml)
- **Output:** Text (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/xiaomi/models/mimo-v2.5-pro-ultraspeed.toml)
- **Reasoning mode:** Yes (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/xiaomi/models/mimo-v2.5-pro-ultraspeed.toml)
- **Tool calling:** Yes (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/xiaomi/models/mimo-v2.5-pro-ultraspeed.toml)

## API pricing (USD per 1M tokens)

| Provider | Input | Output | Cached input | Context |
|---|---|---|---|---|
| Xiaomi MiMo API | $1.30 | $2.61 | $0.01 | 1M |

## FAQ

### What is the context window of MiMo-V2.5-Pro-UltraSpeed?

MiMo-V2.5-Pro-UltraSpeed has a context window of 1,048,576 tokens (1M) and can generate up to 131,072 tokens in a single response, according to models.dev.

### How much does the MiMo-V2.5-Pro-UltraSpeed API cost?

Through Xiaomi MiMo API, MiMo-V2.5-Pro-UltraSpeed costs $1.30 per million input tokens and $2.61 per million output tokens. Prices last verified 4 Oct 2026.

### Is MiMo-V2.5-Pro-UltraSpeed open source?

MiMo-V2.5-Pro-UltraSpeed is an open-weight model. Check the license terms before commercial use.

### When was MiMo-V2.5-Pro-UltraSpeed released?

Xiaomi (MiMo) released MiMo-V2.5-Pro-UltraSpeed on 8 Jun 2026, according to models.dev.

---
Data licensed CC BY 4.0. Cite as: AI Model Directory, "MiMo-V2.5-Pro-UltraSpeed", https://www.aimodel.directory/models/mimo-v2-5-pro-ultraspeed